Increase test time outs a little.
Increase test time outs a little.

Summary:
The 30 seconds timeout caused several unit tests to fail on Jenkins and
my machine. 1 minute should be a good middle ground.

Test Plan: CI

Reviewers: kensipe, unterstein, jenkins

Reviewed By: kensipe, unterstein, jenkins

Subscribers: marathon-team, marathon-dev, jenkins

Differential Revision: https://phabricator.mesosphere.com/D799

janisz/marathon,meln1k/marathon,Caerostris/marathon,Caerostris/marathon,guenter/marathon,janisz/marathon,guenter/marathon,mesosphere/marathon,guenter/marathon,mesosphere/marathon,janisz/marathon,guenter/marathon,gsantovena/marathon,mesosphere/marathon,mesosphere/marathon,Caerostris/marathon,gsantovena/marathon,meln1k/marathon,Caerostris/marathon,meln1k/marathon,janisz/marathon,gsantovena/marathon,mesosphere/marathon,janisz/marathon,gsantovena/marathon,meln1k/marathon,Caerostris/marathon,meln1k/marathon,gsantovena/marathon,guenter/marathon